Home / 298,518,310.80-447,777,466.20-272,690,278.20

Finding the Fourth Proportional to 298,518,310.80, 447,777,466.20 and 272,690,278.20

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Solution

The fourth proportional to 298,518,310.80, 447,777,466.20 and 272,690,278.20 is: 409,035,417.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,518,310.80 : 447,777,466.20 = 272,690,278.20 : x
  2. Step 2: Convert to fraction form
    298,518,310.80/447,777,466.20 = 272,690,278.20/x
  3. Step 3: Cross multiply
    298,518,310.80x = 447,777,466.20 × 272,690,278.20
  4. Step 4: Simplify right side
    298,518,310.80x = 122,104,561,829,769,088
  5. Step 5: Solve for x
    x = 122,104,561,829,769,088/298,518,310.80
  6. Step 6: Final answer
    x = 409,035,417.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.